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<div class="title">src/com/zxx/PullRefresh/PullableListView.java</div>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">package </span>com.zxx.PullRefresh;
<a name="l00002"></a>00002 
<a name="l00003"></a>00003 <span class="keyword">import</span> android.content.Context;
<a name="l00004"></a>00004 <span class="keyword">import</span> android.util.AttributeSet;
<a name="l00005"></a>00005 <span class="keyword">import</span> android.util.Log;
<a name="l00006"></a>00006 <span class="keyword">import</span> android.widget.ListView;
<a name="l00007"></a>00007 
<a name="l00008"></a>00008 <span class="keyword">public</span> <span class="keyword">class </span>PullableListView <span class="keyword">extends</span> ListView implements Pullable
<a name="l00009"></a>00009 {
<a name="l00010"></a>00010 
<a name="l00011"></a>00011         <span class="keyword">public</span> PullableListView(Context context)
<a name="l00012"></a>00012         {
<a name="l00013"></a>00013                 super(context);
<a name="l00014"></a>00014         }
<a name="l00015"></a>00015 
<a name="l00016"></a>00016         <span class="keyword">public</span> PullableListView(Context context, AttributeSet attrs)
<a name="l00017"></a>00017         {
<a name="l00018"></a>00018                 super(context, attrs);
<a name="l00019"></a>00019         }
<a name="l00020"></a>00020 
<a name="l00021"></a>00021         <span class="keyword">public</span> PullableListView(Context context, AttributeSet attrs, <span class="keywordtype">int</span> defStyle)
<a name="l00022"></a>00022         {
<a name="l00023"></a>00023                 super(context, attrs, defStyle);
<a name="l00024"></a>00024         }
<a name="l00025"></a>00025 
<a name="l00026"></a>00026         @Override
<a name="l00027"></a>00027         <span class="keyword">public</span> <span class="keywordtype">boolean</span> canPullDown()
<a name="l00028"></a>00028         {
<a name="l00029"></a>00029                 <span class="keywordflow">if</span> (getCount() == 0)
<a name="l00030"></a>00030                 {
<a name="l00031"></a>00031                         
<a name="l00032"></a>00032                         <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00033"></a>00033                 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (getFirstVisiblePosition() == 0
<a name="l00034"></a>00034                                 &amp;&amp; getChildAt(0).getTop() &gt;= 0)
<a name="l00035"></a>00035                 {
<a name="l00036"></a>00036                         
<a name="l00037"></a>00037                         <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00038"></a>00038                 } <span class="keywordflow">else</span>
<a name="l00039"></a>00039                         <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00040"></a>00040         }
<a name="l00041"></a>00041 
<a name="l00042"></a>00042         @Override
<a name="l00043"></a>00043         <span class="keyword">public</span> <span class="keywordtype">boolean</span> canPullUp()
<a name="l00044"></a>00044         {
<a name="l00045"></a>00045                 <span class="keywordflow">if</span> (getCount() == 0)
<a name="l00046"></a>00046                 {
<a name="l00047"></a>00047                 
<a name="l00048"></a>00048                         <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00049"></a>00049                 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (getLastVisiblePosition() == (getCount() - 1))
<a name="l00050"></a>00050                 {
<a name="l00051"></a>00051                         
<a name="l00052"></a>00052                         <span class="keywordflow">if</span> (getChildAt(getLastVisiblePosition() - getFirstVisiblePosition()) != null
<a name="l00053"></a>00053                                         &amp;&amp; getChildAt(
<a name="l00054"></a>00054                                                         getLastVisiblePosition()
<a name="l00055"></a>00055                                                                         - getFirstVisiblePosition()).getBottom() &lt;= getMeasuredHeight())
<a name="l00056"></a>00056                                 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00057"></a>00057                 }
<a name="l00058"></a>00058                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00059"></a>00059         }
<a name="l00060"></a>00060 }
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